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June 9, 1942. a. M. sHlPLEY CASH REGISTER Filed Feb. 18, 1938 12 Sheets-Sheet l Hi8 @12h01 mug June 9, 1942. B. M. sHlPLEY 2,286,116

CASH REGISTER Filed Feb. 1s, 195e 12 sheets-sheet 2 i i, SWW

gvwentoz Bemis M Shlpley Hi8 @Noz M13 June 9, 1942. B M, sHlPLEY l 2,286,116

CASH REGI STER Bemis M. Shipley By Hi. am 2 June 9, 1942. B. M. sHlPLEY 2,286,116

CASH REGISTER Filed Feb. 18, 1958 12 Sheets-Sheet 4 June 9, 1 942. B. M. sHlPLEY CASH REGISTER Filed Feb. 1e, 193e 12 Sheets-Sheet 5 gyvoentoo Berns M. Shipley Hi8 am? lJune 9, 1942. B. M. sHIPLEY CASH REGISTER Filed Feb. 1s, 195s l2 Sheets-Sheet 6 31a/vento@ Bemis M. Shipley Hi8 duoznu June 9, 1942. B, M. sHlPLEY 2,286,116

CASH REGISTER Filed Feb. 18, 1938 12 SheeZS-Sheeil '7 r1/vento@ Bemis M. Shipley @www June 9, 1942- B. M. SHIPLEY CASH REGI STER Filed Feb. 18, 1938 l2 SheeLS-Sheeb 8 FIG'. 22

`lune 9, 1942. B, M, SHIPLEY CASH REGISTER Filed Feb. 18, 1938 l2 Sheets-Sheet` 9 www IH/vento@ Bemis M. Shipley B. M. SHIPLEY CASH REGISTER June 9, 1942.

Filed Feb. 18, 1938 l2 Sheets--Sheefl 10 S14/vento@ Bemis M. Shipley B. M. SHIPLEY CASH REGISTER June 9, 1942.

Filed Feb. 18, 1938 l2 Sheets-Sheet 11 www ln/wanton Bex-nis M. Shipley Hi8 dbbyzmu June 9, 1942. B. M. sHlPLr-:Y

CASH REGISTER Filed Feb. 18, 1938 l2 Sheets-Sheet l2 :g1/mmh* o@ Tra/1.5 Bemis M. Shipley Hi8 1R01 new m I m Il tllll E l &

FIG.

Patented June 9, -1942 CASH REGISTER Bemis M. Shipley, Dayton, Ohio, assignor to The National Cash Register Company, Dayton, Ohio, a 'corporation of Maryland Application February 18, 1938, Serial No. 191,169

(Cl.l 235-2) 18 Claims.

The following invention is directed to small, compact, and elcient cash registers, for u`se in lling stations, drug stores, chain stores, and analogous businesses, and particularly to that class of cash registers embodying the type of differential mechanism disclosed in Shipley Patents Nos. 2,048,083, granted July 21, 1936, 1,804,- 650 granted May 12, 1931, and 2,031,860 granted February 25, 1936, and to machines embodying the internal-external gear mechanism disclosed in U. S. Patent No. 1,693,279, issued November 27, 1928, to Walter J. Kreider.

The main object of this invention` is the provision of a small, compact, eflicient, readily portable, and easily operable cash register, for use in lling stations, drug stores, chain stores and analogous businesses.

Another object is to provide a register, having the above characteristics, with a selectively shiftable type carrier unit for, printing in the various columns of a record strip.

Still another object is to furnish novel means for adjusting the differential control members.

A further object is to provide means to differentially position the type carriers in proportion to the amount set up on the amount keys and to simultaneously shift said type carriers, to position them in relation to the different columns of the record material.

Another object is the provision of means for shifting the record material from reading position to printing position.

Another object is to supply novel compensating means t0 automatically control the tension of the impression means.

Further objects of the present invention are, to provide novel means for preventing-the overflow type wheels from printing in adding operations, to supply an improved impression operating mechanism, to provide novel means for controlling the machine in total and sub-total op erations, and the provision of various interlocks between the different mechanisms of the machine.

With these and incidental objects in view, the invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims, and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

In the drawings:

Fig. 1 is a longitudinal sectional view, as observed from the left of the machine, taken just to the right of the ten dollar amount bank.

Fig. 2 is an elevation of the left side oi the machine, with the left side frame removed, showing in particular the impression mechanism.

Fig. 3 is a facsimile of a fragmentary portion of the record strip and the closure through which said record strip is accessible.

Fig. 4 is a top plan view of the machine, with the cabinet and the indication removed, and a portion of the keyboard broken away.

Fig. 5 is a detail view of one of the amount -control slides, showing the relation of the stopping lugs thereon to the various keys of the amount bank associated therewith.

Fig. 6 is a left side elevation of the differential mechanism for the ten dollar amount bank.

Fig. 'I is a sectional view through an amount bank.

Fig. 8 is a detail view illustrating how the keys of Fig. 6 position the differential mechanism associated therewith.

Fig. '9 is a fragmentary detail view of the mechanism that restores the control slides and levers to normal positions.

Fig. 10 is a side elevation of the total control lever and associated mechanism, the interlock between the amount keys, the transaction keys and the total control lever, and the interlocks between the total control lever, the control keys, and the machine operating mechanism,

Fig. l1 is a detail view of the mechanism for locking the transaction or control keys during machine operations.

Fig. 12 is a front view, illustrating the locking detents for the various amount banks and the transaction bank, and the control mechanism associated with the transaction bank.

Fig. 13 is a detail view of the mechanism for releasing the depressed keys near the end of machine operation.

Fig. 14 is a left side elevation oi the operating handle.

Fig. 15 is a fragmentary sectional view of the operating handle or lever.

Fig. 16 is a detail view, illustrating the mechanism whereby the totalizer wheels position the differential mechanism in total and sub-total operations.

Fig. 17 is a perspective view of the main operating shaft and the mechanism for driving the differential devices.

Fig. 18 is a top plan view of a portion of the mechanism for moving the amount type carriers to various columnar positions,

Fig. l19 .is a detail view of the internal-external gear mechanism for positioning the type wheels.

Fig; 20 is a detail view showing the transaction differential mechanism' and how it' isfconnected to the mechanism illustrated in Fig. 18.

Fig. 21 is a sectional view taken along line 2|'2l, Fig. 19, showing the type wheel assembly "`a bail, which is rocked to ineffective position by for printingfin the various columns o1' the record material.

Fig. 22 is a front view of a portion of the main operating shaft, showing the operating ngers for the transfer mechanism.

Fig. 23' is Ia side elevation, as observed from the left, of the impression and paper feeding mecha- Fig. 27 mustrates the mechanism far transierring amounts from lower to higher denominations.

Fig. 28 is a detail view of transfer mechanism.

Fig. 29 is an end view of the transfer operating :fingers and the mechanism for driving said fingers.

Fig. 30 illustrates the connection between one of. the amount diilerentials and the ltype wheel associated therewith.

Fig. 31 illustrates the mechanism for rocking the higher order type wheels tofprinting position, in total and sub-total operations.

Fig. 32 is a front'view of the type wheel driving mechanism.

Fig. 33 is a perspective view of the transaction or control bank and one of the amount banks, and the controlling mechanism associated therewith.

Fig. 34 is a diagrammatic view as observed from the front of the machine, illustrating the pinion lines which connect the amount and transaction diierential mechanisms to the indicators and type wheels associated therewith.

GENERAL @Escenarios The machine chosen to illustrate the present invention is enclosed in a cabinet, the outlines of which are shown in United States Patent No. Des. 81,411, issued to Bernis M. Shipley on June 1'?, 1930, and is provided with four amount banks, which in cooperation with their associated differential mechanisms position their corresponding indicators and type wheels to indicate and print the amount set up thereon, and also cause said amount to be added in the corresponding wheels of a totalizer unit.

The type Wheels, associated with the various amount banks, are mounted in a slidable frame- Work, which is positionable in relation to the various columnar divisions which are ruled on the record strip, thereby providing a simple and eilicient column printing cash register having many novel features.

Depressing any one of the amount keys moves the lower end of the stem thereof into the path of a corresponding projection on a corresponding spring-pulled slide, which is connected to a corresponding differential control lever. amount slides are retained in normal position by a portion of the the depression of any one of a series of transaction or column-selecting keys. 'I'his releases the amount "slides to the action of their springs, which position said slides and theirassociated control levers, in accordance withthe depressed amount keys. Depression of any one oi' the transaction keys also locks the depressed amount keys against release and the undepressed amount keys against depression, and likewise` locks the transaction keys against release or depression.

Moreover, depression of any one of the transaction keys also unlocks the operating lever to permit operation of the machine.

Upon operation of the machine, the differential control levers position corresponding diiierentials in accordance with the depressed amount keys and the diirerentials in turn position corre- The sponding indicators and type wheels to indicate and print the amounts set up on the amount keys.

As previously stated, the type wheels for the amount banks are mounted in a movable frame, which is selectively positioned by the differential mechanism, for the transaction keys, to print in a columnmf the record material corresponding to the depressed transaction key. The amount difierentials, in cooperation with corresponding totalizer wheels, add in said totalizer wheels the amounts set up on the keyboard.

In addition to the four amount banks, the

present machine is equipped with three overiiow banks, having corresponding differential mechanisms, type wheels and totalizer wheels, for increasing the accumulating capacity of theregister. The .type wheels for the three overow banks function only in total and sub-total operations, and inasmuch as totals and sub-totals are always printed in a particular column of the record sheet, it is unnecessary to have these type wheels mounted in the movable frame with the type wheels for the amount banks. In total and sub-total operations the type wheels for the amount banks are always moved adjacent the type wheels for the three overflow banks, and in cooperation therewith, print the total or the subtotal of the amount contained in the totalizer in a particular column of the record sheet. p A manipulative lever is provided for conditioning the machine for total and sub-total operations. Moving the manipulative lever to either total or sub-total position locks the transaction keys against depression and retains the diierential control slides and levers in a neutral position. Moving the total control lever to either total or sub-total position also renders mechanism eiective that causes the totalizer wheels to be reversely rotated, and while being reversely rotated a long tooth on each of said totalizer wheels, corresponding to the zero position thereof, in cooperation with associated stop mechanism, stops said totalizer wheels in zero position. 'I'his zeroizes the totalizer and simultaneously sets the type wheels to the amount standing on said totalizer. In total operations the wheels of the totalizer are disengaged from the totalizer actuators while standing at zero, and in sub-total operations the totalizer wheels remain in engagement with the totalizer actuators and are restored thereby to their original positions. Moving the total control lever to either total or subtotal position also unlocks the machine so that it may be operated without the depression of a transaction key.

As previously explained, the record material .one of suchcolumns being used for printing totals andV sub-totals. The record materialV is threaded around Va. shiftable 'framework which supports the impression block, and a portion of which forms a table for writing various data in a column of the record material reserved for that purpose.

When the machine is at rest the last few entries on the 4record strip are visible through transparent material, covering an opening in the top of a closure for the cabinet-and the column of the record strip reserved for writing down data is accessible through an opening in said transparent material. Upon operation of the machine the shiftable impression frame-work moves the record strip from reading position to printing position and simultaneously becomes engaged with the impression operating mechanism, whereupon operation of the printing hammer. at the proper time, rocks the impression framework, to imprint the amount set up on the keyboard, or the total contained in the totalizer, in the appropriate columns of the record material. After printing is completed, the shiftable impression framework is moved to reading position where the last entry and several of the preceding entries are visible through the opening inv the cabinet closure.

The single impression block is necessarily quite long, in order to cover all the columns of the record material, thereby necessitating the development of a novel, yieldable, tension device for maintaining uniform printing pressure between the impression block and the type wheels.

The mechanism outlined in general above will now be described in detail.

DETAILED DESCRIPTION Framework Directing attention to Figs. 1, 2 and 4, the main framework of the machine comprises a right frame 58, a left frame 5I, and auxiliary frames 52 and 53, held in fixed relation to each other by tie bars 54, 55 and 56, and cross frames 51 and 58. The cross frames 51 and 58 are in turn secured to a machine base 59, and the mechanism of the machine is enclosed in a suitable case or cabinet 88 which is also secured to the machine base 59. The machine base 58 is secured to the top of a suitable drawer cabinet 806 (Fig. 2) having a single cash drawer 885, later to be described.

Operating mechanism The present machine is provided with a manipulative lever 8l (Figs. l, 2, 4, 14 and l5), similar to that used on adding machines, for operating the machine mechanism. However, power operating means may be easily installed in place of the lever 6|, if desired.

Integral with the lever 8i (Figs. 4 and 15) is a hub 62, which fits in the bore of a bushing 63, secured in the frame 58. The hub 82 has angular tenons 84 which lit corresponding clutch cuts in a hub 85, one diameter of which fits in the bushing 63 and a smaller diameter of which fits freely in a hole in a bracket 66 secured to the frame 50. A screw stud 51, which threads into the hub 65, compresses a spring 88 in a boring in the hub 62, said spring and said screw stud, together, forming a non-rigid coupling between the hubs 82 and 85. When for Aany reason the kmachine mechanism fails to function, applying excessive pull to the lever 8| causes the tenon 84 to ride out .of its angular clutch cut, further compressing theispring 88, thereby preventing damage to the mechanism of the machine.

Integral with the hub 85 (Figs. 14 and 15) is a disc' 88 carrying' Aa stud 18, which extends through a clearance slot in the frame 50 concentric with the bushing 63. The stud 10 en-4 gages one of a series of holes in a collar 1l, turnably supported by the bushing 83, and retained in position against the outside surface of the frame 5,0 by the bent-over portion of a retaining plate 12 (Fig. 4) secured to the frame 50. A comparatively strong spring 13, tensioned between a stud in the collar` 1I and a stationary stud in the frame 58, is provided fox-,returning the lever 8l from operated positionto normal position, to' complete operation of the machine.

Pulling the lever 8| `clockwise or to the right, as viewed in Fig. 14, causes a radial slot 14 in the disc 89, in cooperation with a roller 15 on one end of a lever 16 secured to a plate 11 in turn secured on a main drive shaft 18 journaled in the frames 58, 5I, 52 and 53 (Fig. 4), to rock said lever 16 and said shaft 18 clockwise/Clockwise movement of the shaft18 is terminated by a projecting finger 18, on the disc 89, contacting a stationary stud 80 in the frame 50. This tensions the spring 13, which upon release of the lever 6I, returns said lever and the shaft 18 counter-clockwise to normal positions, as shown in Fig. 14. A complete oscillation of the main shaft 18, as just described, ,causes the machine to operate through a complete cycle.

A tooth of a full-stroke pawl 8l (Figs. 14 :and 15), fulcrumed on a stud 82 in the frame 58, in cooperation with va series of equally spaced V notches 83, in the periphery of the disc 19, enforces full movement of the handle 8i and the shaft 18, in either direction to prevent mal-operation of the machine.

Keyboard `The keyboard of the machine embodying the present invention includes four rows of amount keys 84, (Figs. l, 2 and 4) which are used for the setting up of amounts to be displayed by the indicators, printed in one of a plurality of columns of a record strip 85, (Fig. 3), and entered in the totalizer. The keyboard also includes a row of nine transaction or column selecting keys 86 (Figs. 4 and 33), depression of any one of which locks depressed amount keys and transaction keys against release and locks undepressed amount and transaction keys against clepression, causes the differential control mechanism to be positioned by the depressed amount keys, unlocks the machine operating mechanism, and during machine operation, causes the type f wheels for the four rows of amount keys 8l to be moved opposite a column on the record strip 85, corresponding to the depressed transaction key 86. The transaction keys also position front and back indicators to visibly display the type of transaction being performed.

To the right of the row of transaction keys 86 (Fig. 4) is a frame 81, similar to the amount and transaction key frames, which has an opening 88 opposite each transaction key 86. Through the transparent covering of the openings 88 there is visible an index for each corresponding key. For example, keys A, B and D, (Fig. 4), represent respectively, three grades of gasoline, indicated The'amount and transaction key frames comprise an inverted U-shaped frame 88 (Figs. 1, 2, 'I and 33) having a bottom cover 88, secured thereto by a plurality of screws threaded into a plurality of studs, depending from the top of the frame'88. The keys 84 and 88 flt in corresponding slots in the top of the frame 88 and the cover plate 88. The vlower ends of the keys 84 and 88 have therein an open slot 8| which engages a lng coil spring 82, opposite ends of which are connected to hook-shaped projections on the plate 98 (Fig. 1) and a plurality of ngers 93 formed out of the plate 88 further support the spring 82 between each of the keys 84 and 88. The amount keys 84 (Figs. 1, 8 and '1) are retained assembled in the framework of the key bank by a locking detent 84,\which passes through vertical slots in said amount keys.

The amount and transaction key banks are easily assembled or removed from the machine. In assembling the key banks in the machine, slppedover a rod 85, (Figs. l, 2 and 33) supported notches in the upper ends of the frames 88 are by the frames 58 and 53, the wall of one of said notches fitting in an annular groove in said rod to side space the key banks. Next, holes, in the lower ends of the frames 88, are slipped over studs 96 in projections of the tie bar 54. The key kbanks are then secured in place by a plate 81, which its over the lower end of the key frames and the studs 88, said plate being anchored by screw studs 88 threaded in the tie bar 54.

The locking detents 84 (Figs. 1 and l2), for the amount banks, have hooks on the' forward ends thereof which engage bent-over ears 88 of arms |88, free on a shaft |8|, journaled in the frames 58 and 53 (Fig.,-4). The lower ends of the arms |88 (Figs. land 12) have notches, which straddle a rod |82'supported by arms |83 and |84 secured on the shaft |8I. A spring |85 (Figs. 1 and 6) tensioned between each of the detents 94 and its respective frame urges said detents forwardly to normally maintain the right-hand wall of the notches in the arms |88 (Fig. l) in contact with the rod |82, to position hook-shaped projections |86, (Figs. 6 and 1) of said detents, in proper relation to webs or bridges |81, which span the vertical slots in the amount keys B4.

Depressing an amount key 84 (Fig. 6) causes the web |81, in cooperation with the angular nose of the corresponding hook |88, to shift the detent 94 rearwardly against the action of the spring |85. When the web |81 passes beneath the hook |86 the spring |85 returns the detent 84 forwardly to retain said key depressed. The amount keys are so-called flexible keys in that depressing an amount key in an amount key bank releases a previously depressed amount key in the same bank.

Differential control mechanism and associated mechanism for each amount bank.

Fig.'5 illustrates the relation of the ten dollar amount keys 84 to their corresponding projections |88. The upper end of the slide |88 (see also Fig. 6) has a slot therein which engages a stud Ill in a segmental portion ofits differential control lever H8, free on a shaft H9, journaled `in the frames 52 and 53 (Fig. 4).

(Figs. l, 6, 10 and 12), tensioned between the slide |88 and the plate ||8, urges said slide forwardly and the lever ||8 clockwise to. nor' mally maintain a projecting end of said` slide in contact with an arcuate bail of a yoke |2|, the arms of which are free on the shaft |8|.

Referring to Figs. 1J. 12, and 33, the 'bank of transaction keys 86 has a locking detent |22, which is like the amount detent 84 (Fig. 6) in construction and assembly. The hook-shaped forward end of the detent |22 engages a bentover ear |23 of one arm of a yoke |24, free on the shaft |8|, and a spring (not shown) urges the detent |22 forwardly and the yoke |24 clockwise to maintain a projection |25, of said yoke, in contact with the rod |82. 'I'he bank of transaction keys 86 also has a control plate |28 (Figs. 10, 12 and 33) which extends through slots in said transaction keys in exactly the same mannez` as the locking detent, and a notch in the forward end of said plate |28 embraces a stud |21 in an extension of an arm |28 free on the shaft |8|, and having a bent-over portion |28 secured to the bail of the yoke |2|. Another extension of the arm |28 carries a stud |38 embraced by a bifurcated extension of an arm |3| free on a stud |32 in the frame 52. Afspring |33 urges the arm |3| counter-clockwise, the arm |28 and the yoke |2| clockwise, to maintain the bail of said yoke |2| in the path of the amount control slides |88 (Fig. 4), and in the path of a transaction control slide |34; the latter mounted in exactly the same manner as the amount slides |88. The arm |28 tends tov shift the control plate |28 forwardly and the positions of these connected parts are determined, when the machine is at rest, by a projection |35 on the rearward end of the control plate |28, in cooperation with the cover plate 98 for vthe transaction bank 88.

Depressing one of the transaction keys 88 (Figs. 10 and 33) causes a web or bridge I 38 on the key 88, extending across the slot for the control plate |28, in cooperation with a corresponding angular slot |31 in said plate |28, to shift said plate rearwardly. Rearward movement of the plate |26 rocks the arm |28 and the bail |2| counter-clockwise to move said bail beneath the ends of the amount and transaction slides |88 and |34, thereby releasing said slides to the action of their respective springs. Counterclockwise movement of the arm |28 rocks the arm |3| clockwise to move an arcuate surface |38 von an extension thereofY beyond a depending linger |38 of the arm |83, Pto release said arm, the rod |82, and the arm |84 (Figs. 1 and 12) so that the rod |82 will no longer obstruct clockwise movement of thearms |88, whereupon the springs |85 shift the locking detents 84, for the amount banks, forwardly to lock the depressed amount keys against releasing and to lock the undepressed amount keys against depression.

Continued clockwise movement of the arm |3| causes the surface |38 to move beyond a nger |48 (Figs. 11 and 12) on an arm of the yoke |24, said finger being slightly longer than the finger |38.- This permits the locking detent |22, for the -transaction keys, to be moved forwardly under influence of its spring to lock said keys against A spring |28 2,aae,11o release or depression. The finger |40 being` slightly longer than the ilnger |89 prevents the transaction keys from being locked until after the amount keys are locked.

Clockwise movement of the yoke |24, under the iniluence of the spring for the detent |22, causes va stud |4|, in an extension of said yoke, in cooperation with the upper end of a lever |42, free on a stud |43 (Figs. 10 and 11) in the frame 52, to rock said lever counter-clockwise against the action of a spring |44.' Counter-clockwise movement of the lever |42 causes a slot therein, coacting with a stud |45 in an arm |48 free on a stud |4| in the frame 52, to rock said arm |46 clockwise to move the upper end thereof from beneath a shoulder |48 on an arm |49 integral with a plate |6| secured to the main shaft 18. This frees the main shaft 18 for oscillation so that the machine may be operated.

Moving the bail |2| (Fig. 1) to ineffective position, by depressing a transaction key 86, permits 'the springs |20 (Figs. 5, 6 and 8) to move the amount slides |09 forwardly until the correspondlng projections |08 on said slides engage the stems of the depressed amount keys. Fig. 8

shows the positioning of the slide |09 and leverA ||8, for the $10.00 bank, by the "seven key. This positions the slides |09 and the corresponding levers ||8 in proportion to the depressed amount keys, whereupon operation of the machine causes corresponding aliners |50 to engage the proper one of a series of tooth spaces in segmental portions of the levers ||8 to retain said levers in set positions. The aliners |50 are secured on a shaft journaled in indicator frames |52 and |53 (Figs. 1, 2 and 4) secured to the tie bar 56 and the frames 50 and`5| by a plurality of screw studs, the removal of which permits the indicator assembly to be removed in a unit.

The shaft |5| is driven in the following manner: Fast on the main drive shaft 18 (Fig. 2) is an arm |54 carrying a stud |55 which extends through a clearance slot in the frame 52 and engages the lower end of a link |58, shown in dot and dash lines, the upper end of which is pivotally connected to an arm |51 free on the shaft |5|. The arm |51 carries a spring pushed pawl |58 adapted to cooperate with four equally spaced notches |59 in a ratchet |80 integral with a disc |85 free on the shaft |5|. The disc |85 has four equally spaced camming notches |68, which cooperate With a roller |81 on an arm |88, free on a stud |69 in the frame |53. The arm |68 is connected by a link |10 to a crank |1| fast on the left-hand end of an indicator aliner shaft |12, journaled in the frames |52 and |53. A spring |13, tensioned between the crank |1| and the frame |53, urges the arm |68 counter-clockwise to normally maintain the roller |61 in engagement with one of the notches |68 when the machine isat rest.

Upon operation of the machine, initial movement clockwise of the main shaft 18 and the arm |54 lifts the link |58 to rock the arm |51 counter-clockwise, causing the pawl |58, in cooperation with the ratchet |60, to rotate said ratchet and the disc |65 counter-clockwise in unison with said arm |51. Counter-clockwise rotation of the disc |85 causes one of the notches |66, in cooperation with the roller |61, to rock the arm |68 clockwise. Clockwise movement of the arm |88 causes a roller |,14 carried thereby, in cooperation with an angular slot in a crank |16 fast on the shaft |5|, to rock said crank and said clockwise, at the beginning of machine operation, to rock the aiming pawls from disengaged position. as shown in Fig. 6, into engagement with the. proper tooth spaces of the levers ||8, as shown in Fig. 8, to retain said levers in said set positions.

The differential control members ||8 position the differentials in proportion to the depressed amount keys during initial movement of the main shaft 18, as will be described later, and while said differentials are being positioned, the periphery tof the disc |85, in cooperation with the roller |81,

retains the aliners |58 in engagement with the levers |8. After the differentials have been positioned, and near the end of the initial movement clockwise of the shaft 18, continued rotation of the disc moves the next notch |88 opposite' the roller |81, whereupon the spn'ng |13 returns the arm |88, the crank |18 and the shaft |5| counter-clockwise to normal position, as shown in Fig. 2, to disengage the laliners |50 from the control levers I8.

A stationary stud |11 (Fig. 2) in the frame 5| extends through a clearance slot |18 in the link |56 and supports a washer and a cotter key, which holds the link |58 in engagement with the stud |55 and the stud in the arm |51.

Return movement counter-clockwise of the shaft 18 and the arm |54, causes the pawl |58 to ratchet over the next succeeding tooth |59 in the ratchet |80, in preparation for the next operation of the machine. From the foregoing description it is apparent that during each operation! of the machine the disc |65 is rotated degrees, or one-fourth revolution, counterclockwise.

Amount difrential mechanism The differential mechanism associated with the $10.00 amount bank is shown in Figs. 6, 8 and 16, and will now be described. lnasmuch as the diiierential mechanisms for the different amount banks are substantially alike, it is believed that a description of such mechanism for the $10.00 bank will suillce. 4The differential mechanism, for the present machine, is similar to that shown in the Shipley Patent No. 2,048,- 083, referred to at the beginning of this specication, and for that reason will be but briefly described.

The lever ||8, for the $10.00 bank, is connected by a hub 263 (Figs. 4 and 6) and a pin 233 to an extension 264 having a rounded end |8| which cooperates with a projection |82 and a bent over ear |83 of complementary movable differential sectors |84 and |85, free on a rod |86 supported by the main frames 50 and 5|. When the differential control slide |09 and its lever |8, for the $10.00 bank, are in neutral positions, as shown in Fig. 6, the rounded end |8| of the extension |84 is out of the path of the projection |82 and the bent-over ear |83 of the sectors |84 and |85. When no key is depressed the slide |09 and lever |8| move full distance forwardly and clockwise, respectively, which is the zero position of said members. In total recording operations the slide |09 and the lever ||8 are retained in neutral position, as shown in Fig. 6, so that the differential mechanism may be positioned by the totalizer wheels.

The sectors |84 and |85 have, respectively, opposed slots |81 and |88, symmetrical in outline and an indicator and type wheel setting segment |89, free on the rod |86, has a heart-shaped slot |90. Through the slots |81, |88 and |90 extends a roller 9| mounted between companion links |93 and |94, which straddle the differential mechanism land. are connected bya hub |95 (Fig. 17). The hub |95 is free on a rod |96 secured between arms |91 and -I 98 fulcrumed, respectively, on studs |99 and 200 secured in the frames 52 and 53. Extensions of the Varms |91 and |98 carry, respectively, rollers 20| and 202 which engage, respectively, similar camming slots 203 and 204 in the arm |49 and a similar arm 205 secured on the shaft 18. A rod 206 (Fig. 6), extending between the frames 52 and 53, in' cooperation with an extension 201 of the sector |84 and a pad 208 on the segment |89, positions said sector and said segment at the extent of their counter-clockwise movement. A stud 209 (Figs. 6 and 16) in a plate 2|0, later to be described, in cooperation with a pad 2|| on the sector |85, positions said sector at the extent of its clockwise travel. These are the home positions of the sector |84, segment |89 and sector |85.

Assuming that the #7 key has been depressed, in the $10.00 amount bank: Depressing a transaction key 86 causes the control slide |09 and the control lever ||8 and its extension |64, to be positioned as shown ln Fig. 8. Upon operation of the machine initial movement clockwise of the main shaft 18 (Figs. 6 and 17) causes'the cam slots 203 and 204, in cooperation with their respective rollers 20| and 202, to rock the arms |91 and |98 and the rod |96 clockwise, as here viewed. Clockwise movement of the rod |96 shifts the companion links |93 and |94 rearwardly, causing the roller |9|, in cooperation with the opposed slots |81 and |88, to move the complementary sectors |84 and |85 toward each other, in scissors fashion, until said sectors embrace the rounded lower end I8! of the lever H8, between the projection |82 and the ear |83. 'Ihis differentially positions the complementary sectors in proportion to the depressed amount key, and the roller |9|, in cooperation with the apex of the heart-shaped slot |90, in the segment |89, positions said segment in proportion to the sectors |84 and |85.

The sector |84 (Figs. 6 and 16) has pivotally connected thereto a Y-shaped member 2|5, having upper and lower rack teeth adapted to cooperate with a pinion 2|6 integral with a totalizer actuator gear 2|1, free on a rod 2I8 supported by the frames 52 and 53. 'I'he actuator gear 2| 1 is adapted to cooperate with a correspending totalizer wheel 2|9, vfor the $10.00 bank, free on a rod 220 supported by a rockable .totalizer frame, later to be described.

In adding operations a cam 22| (Fig. 1), free on the shaft 2|8, in cooperation with parallel bent-over edges 222 and 223 of the member 2|5 positions said members so that the lower set of teeth is in mesh with the pinion 2|6. The operation of the cam 22| will be explained later herein, in conjunction with total and sub-total operations. At the beginning of an adding operation the totalizer wheel 2|9 (Fig. 6) is engaged with the actuator gear 2|1, whereupon movement of the complementary sector |84 from zero position to its seventh position, as shown in Fig. 8, rotates the actuator gear 2|1 counterclockwise and the totalizer wheel 2|9 clockwise to add therein the amount set up on the keyboard. Near theend of clockwise movement of the shaft 18 and after the amount has been added in the totalizer wheel 2|9, one of a series of aliners 2|2 (Fig. 25) fast on the shaft 18 en- 4gages the teeth of the actuator 2|1 to aline said actuator and connected' parts in set positions. Near the beginning` of return movement counter-clockwise of the shaft 18 the aliner disengaged from the actuator 2|1.

After the complementary sectors |84 and |85 have completed their initial movements, to add the amount set up on the keyboard in the totalizer, the totalizer wheel 2|9 is disengaged from the actuator 2|1,'whereupon return movement counter-clockwise of the main shaft 18 (Fig. 17) and the arms |49 and 205, returns the rod |96 and the companion links |93 and .'94 forwardly to return said complementary sectors from the position shown in Fig. 8 to their normal or zero "positions, as shown in Fig. 6. -When no key is depressed in the $10.00 amount bank the slide |09 and lever ||8 move full distance forwardly and clockwise, respectively, to retain the sector |84 in zero position, so that no movement will be imparted to the actuator gear 2|1 and its associated totalizer wheel 2|9.

The contour of the opening (Fig. 6) makes the segment |89 and associated parts a minimum movement device, in that the roller |9|, upon operation of the machine, moves said segment directly from the position in which it was set during the preceding operation to its new position, said segment |89 remaining in its set position at the end of machine operation. As previously stated, the minimum movement segment |89 positions a front and back indicator and a type wheel for this amount bank to indicate and record the amount set up on the keyboard.

The control lever I8 and its associated slide |09 are restored to normal position near the end of machine operation by the mechanism shown in Figs. 2 and 9. This mechanism includes an arm 224 secured on the main shaft 18 and connected by a link 225 to an arm 226 free on the shaft ||9. The arm 226 has pivotally mounted thereon a pawl 221 urged counter-clockwise by a spring 228 toward a disc 229 fast on the shaft H9. When the machine is at rest a stationary stud 230 retains the pawl 221 out of engagement with the periphery of the disc 229.

Upon operation of the machine initial movement clockwise of the main shaft 18 and the arm 224 rocks the arm 226 also clockwise to retract the pawl 221 from the stud 230 to permit said pawl to engage the periphery of the disc 229.

. Continued movement clockwise of the arm 226 causes the pawl 221 to snap behind a shoulder 23| of the disc 229, whereupon counter-clockwise return movement of the shaft 18, the arms 224 and 226, rocks the disc 229, the shaft ||9,

and a nger 232 (Fig. 6), secured on saidv shaft adjacent the lever H8, Vcounter-clockwise. Counter-clockwise movement of the shaft H9 causes the finger 232, in cooperation with an extension of the stud 233, to return said lever and the control slide |09 counter-clockwise and rearwardly, respectively, to neutral position, as here shown. This, 'of course, occurs after the aliner |50 has been disengaged from the alining teeth of the lever IIB. When the slide |09 is fully returned to neutral position, the bail |2| (Fig. 10) is returned into the path thereof, by spring |33 in the manner hereinafter described, to hold said slide and the `lever l I8 in neutral positions.

After the bail |2-| has jbeen returned to effective position the stud 230 (Fig. 9) rocks the pawl 221 out of engagement with the shoulder 23|, thereby freeing the shaft ||9 to the action of a spring 234, one end of which is connected to a finger 235 secured on said shaft. The spring 234 immediately returns the shaft ||3 clockwise to normal position, which is determined by the finger 235 contacting a stationary stud 233.

Key release mechanism When the key lock shaft |3| (Fig. 10) is rocked clockwise, upon depression of a transaction key 33, as explained earlier herein, such movement of said shaft is terminated by a stud 231 (Fig. 13) in an arm 233, secured to said shaft, coming in contact with a surface 239 of the frame 53. The arm 224 (Figs. 2, 9 and 13) has pivoted thereto the lower end of a link 243, the upper end of which is slotted to receive a stud 24| of one arm of a bell crank 242 fulcrumed on a stud 243 in the frame 53. Another arm of the bell crank 242 has pivotally connected thereto one end of a pitman 244, the other end of which is slotted to straddle a stud 245 in the frame 53. The pitman 244 has pivoted thereon a threearmed pawl 243, urged counter-clockwise by a spring 241. When the machine is at rest and the parts are in normal position, as shown in Fig, 13, a stud 243 in the frame 53, in cooperation with the downwardly extending arm of the pawl 243, retains a projection 249 of said pawl out of the path of the stud 231.

Initial movement clockwise of the shaft 13,

lthe projection 249 of said pawl, under influence of the spring 241, to by-pass the stud 231.

Counter-clockwise movement of the pawl 243 is terminated by a shoulder thereon engaging a stud 253 in the pitman 244. Return movement counter-clockwise of the shaft 13 shifts the pitman 244 forwardly causing the projection 243 of the pawl 243, in cooperation with a flat surface 25| of the stud 231, to rock the arm 233 and the shaft |3| counter-clockwise, as viewed in Figs. and 13. Counter-clockwise movement of the shaft 3| and the rod |32, which it will be recalled is connected to said shaft, (Figs. 1, 6, 10 and 11) rocks the arms |33 for the amount detents 94 counter-clockwise to shift said detents rearwardly to disengage the hooks |33 thereof from the bridges |31, of the depressed amount keys, to permit said amount keys to be springreturned to undepressed positions.

Counter-clockwise movement of the rod |32 also rocks the yoke |24 (Fig. l1) counter-clockwise to shift the detent |22, for the transaction bank, rearwardly to release the depressed transaction key. Counter-clockwise movement of the arm |33 (Fig. 10) and the yoke |24 (Fig. ll) rocks the projections |33 and |43 thereof beyond the surface |33 of the arm |3| to permit the spring |33 to return said arm, and the bail |2|, counter-clockwise and clockwise, respectively, to move said bail into the path of the slides |39 and .|34 for the amount and transaction banks, re-

spectively, to retain said slides in neutral position. After the surface |33 on the arm |3| is moved into the path of the projections |33 and |43, the downwardly extending arm of the pawl 243 (Fig. 13) engages the stud 243, and rocks said pawl clockwise to move the projection 249 thereof out of the path of the stud 231, whereupon the springs |35, for the locking detents (Figs. 1 and 6) return said detents forwardly a slight distance, so that the hooks |33 will be in the path of the bridges of the amount the path of the shoulder |43 of the arm" |49 to lock the machine against operation.

Totalizr As previously stated, the wheels 213 of thev totalizer (Figs. l, 4, 25 and 27) are mounted on the rod 223 supported by plates 252 and 253, which together with the shaft 22|),y and various other shafts and rods of the totalizer mechanism, constitute a rockable frame, rotatablyv supported by a shaft 254 journaled in the frames v52 and 53. The plate 253 (Fig. 25) carries a stud 255, which cooperates with a pad 253A on a cam lever 251 secured on the shaft 254. A stud 253 in the plate 252 cooperates with the upper end of an arm 259 also secured on the shaft 254.

In adding operations a latch 235, mounted on the plate 253, is impelled by a spring 233 into engagement with a stud 231 in the upper end of the lever 251 and holds said lever in fixed relation to said plate 233. The lever 251 (Fig. 25) carries rollers 233 and 233 which cooperate, respectively, with the peripheries of companion plate cams 213 and 21| (see also Fig. 26), which togetherl with an operating disc 212 and a retaining disc 213 are assembled` in an integral unit free on a stud 214 secured in the frame 53. The operating disc 212 has two diametrically opposed operating notches 215, which cooperate with the tooth of a spring-pushed operating pawl 213 pivotally mounted on a plate 211 free on the stud 214. Integral with the plate 211 is a pinion 213, which meshes with teeth in a segmental portion of the arm 235.

Initial movement of the shaft 13 and the arm 235, during machine operation, rotates the pinion 213 and the plate 211 one-half revolution counter-clockwise, causing the pawl 213, which normally engages one of the notches 215, to rotate the assembly, including the cams 213 and 21|, one-half revolution in a counter-clockwise direction. Initial movement of the cams 213 and 21| rocks the lever 251, the shaft 254 and arm 259 counter-clockwise, which by means of the studs 255 and 253 rocks the totalizer frame counter-clockwise in unison therewith to engage the wheels 2|3 of the totalizer with their respective actuators 2|1, near the beginning of machine operation, after which operation of the differential mechanism pictured in Fig. 6 and explained earlier herein, rotates the actuators 2|1 and the totalizer wheels 2|9 to add into said totalizer wheels the amount set up on the keyboard.

Prior to the end of the clockwise movement of the shaft 13 and the cam 235, the cams 213 and 21| rock the lever 251, the shaft 254 and the arm 253 clockwise to normal positions, as shown in Fig. 25, and as the latch 235 remains in engagement with the stud 231 in adding operations, the totalizer frame moves in unison with the lever 251 to disengage the totalizer wheels 2|9 from the actuators 2|1. Return movement counterclockwise of the shaft 13 and the arm 235 rotates the plate 211 clockwise to cause the pawl 213 to ride out of the left-hand notch 215 (Fig. 26) in the disc 212, and to engage the right-hand notch 215 in said disc.

One of two diametrically opposed notches 213 in the retaining disc 213, in cooperation with the tooth of a spring-pulled retaining p awl 233 free on a stud 23| in the frame 53, retains the cam 4Totalizer transfer mechanis A brief descriptionwill now be given of the totalizer transfer mechanism, shown principally in Figs. 27, 28 and 29. For a more thorough description of this mechanism reference may b'e had to the Shipley patents referred to at the beginning of this specification.

'I'he totalizer wheel 2|9 (Fig. 27), for the ten -doilar amount bank, meshes with a gear 282 free on a rod 283 supported by the plates 252 and 253 i .of the totalizer frame (Fig. 4). A retaining pawl 284free on a rod 285, supported by the plates of I the totalizer framework, is urged clockwise by a spring 288 into vengagement with the teeth ofthe gear 282, to retain said gear and its associated totalizer wheelV 2|9 against unintentional displacement. The bail of a yoke 281, supported by the rod 285 and a rod 288 extending between the totalizer side plates, is slotted to receive each of the pawls 284 to retain said pawls in lateral alinement with their respective gears 282.

Integral with the gear 282 is a ratchet 289, the teeth of which cooperate with the upper end of a transfer pawl 290 pivotally connected, at its lower end, to an arm 29| free on a rod 300 extending between the plates 252 and 253 (Fig. 4). The upper end of the transfer pawl 290 is guided in relation to the teeth of the ratchet 289 by a curved slot, in said pawl, in cooperation with a stud 293 in a transfer control lever 294, (Figs. 27 and 28) free on a rod 295 supported by the plates 252 and 253, A spring 296, stretched between the lever 294 and a transfer latch 299, urges said lever counter-clockwise to normally maintain a shoulder 291, formed in an openingv in said lever, in contact with a iiat surface on a stud 298 carried by the transfer latch '299. The latch 299 is free on the rod 300 supported by the plates 252 and 253, and the spring 296 urges said latch counter-clockwise to normally maintain the stud 298 in engagement with the shoulder 291.

As previously explained, the actuators 2|1 rotate the totalizer wheels 219 in a clockwise direction (Fig. 27) in adding operations, and when the wheel 2|9 for the one dollar order passes v through zero the long tooth 314 thereon .engages the tooth 30| of a trip pawl 302 and rocks said trip pawl counter-clockwise on its pivot rod 303, supported by the plates 252 and 253. Counterclockwise movement of the trip pawl 302 causes a stud 304 carried thereby, in cooperation with an irregular slot in the latch 299, to rock said latch v clockwise, against the action of the spring 296, to move the stud 298 out of engagement with .the

shoulder '291. This releases the transfer lever 294 to the action of the spring 296, which rocks said lever counter-clockwise. causing the stud 293, to rock the upper end of the transfer pawl 290 into the path of the teeth of the ratchet 289.

Initial movement clockwise of the main shaft 18 (Fig. 29) rocks a plurality of spirally arranged projecting surface thereof in contact with a rod t 3|1, extending between the plates 252 and 253.

Return movement counter-clockwise of the shaft 13 and the nngers 305, causes the fingers for the ten dollar order, in cooperation with the angular nose of the tappet 308, to rock the arm 301 clockwise. Clockwise movement of the arm 301, by means of the bifurcated upper end thereof, in cooperation with a stud 3|8 in the arm 29|, rocks said arm counter-clockwise. Counterclockwise movement of the arm 29| shifts the transfer pawl 290 upwardly, and said pawl, guided by the curved slot therein in cooperation with the stud 293, engages a tooth of the ratchet 289 to rotate the gear 282 and its associated totalizer wheel 2|9, for the ten dollar order,' counter-clockwise and clockwise, respectively one tooth space to add one therein, which is equivalent to transferring ten from the one dollar order.

When the transfer paw1`290 rotates the gear 282 counter-clockwise, the tooth of the ratchet 289, following the one engaged by said transfer pawl, in cooperation with a fiat surface on said transfer pawl, rocks said pawl clockwise, which by means of the curved slot therein, in cooperation with the stud 293, also rocks the control lever 294 clockwise, whereupon the stud 298 reengages the shoulder 291 to restore the transfer mechanism to untripped position. Counterclockwise movement of the transfer fingers 305 always shifts the transfer pawls 290 forwardly in the manner explained above. However, when the lever 294 is retained in untripped position, as shown in Fig. 28, the stud 293, in cooperation with the slot in the transfer pawl 290, guides the tooth of said pawl below the teeth of the ratchetv 289, and consequentlyno movement is imparted -to the gear 282 and its associated totalizer wheel.

The fingers 305 (Figs. l, 22, 27 and 29) are free on the main shaft 18, and inasmuch as said shaft does not have sufficient oscillating movement to properly operate said lingers, a return gearing, which connects the main shaft to the fingers, is provided for amplifying the movement of said shaft.

Notched downward extensions of the figures 305 t in matched slots in the bail of a yoke 3|9 lfree on the shaft 18, and having integral therewith a gear sector 320 meshing with a corresponding sector 32| free on a stud 322 in the frame 53. Fixed to the sector 32| is a sector 323, which meshes with a companion sector 324 secured to the main shaft 18. The oscillating movement of the main shaft 18, through the sectors 824, 323, 32| and 320 is amplied and imparts sumcient movement to the yoke 3 9 and the fingers 305 to operate the transfer mechanism properly, The helical arrangement of the fingers 305 (Fig. 29) permits uniform progressive transferring movement from the lowest to the highest denomination without imparting excessive strain to the operating mechanism.

'I'he transfer mechanism described above, in connection with the ten dollar amount bank, 

